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Japanese verbいけない (ikenai) Conjugation
いけない (ikenai) means “bad, wrong, naughty”. It is a い-adjective verb. It is an い-adjective: the final い changes, so いけなくない, いけなかった, いけなくて. Below is its conjugation in all 14 forms, plain and polite, the same forms the Japanese verb conjugation worksheets print in their answer keys.
- Meaning
- bad, wrong, naughty
- Type
- い-adjective
- Dictionary form
- いけない
- Romaji
- ikenai
- Negative
- いけなくない
- Past
- いけなかった
- Te-form
- いけなくて
- Adverb
- いけなく
Basic forms
Present現在形・辞書形
| Plain | いけない |
|---|---|
| Plain negative | いけなくない |
| Polite | いけないです |
| Polite negative | いけなくないです |
Past過去形・た形
| Plain | いけなかった |
|---|---|
| Plain negative | いけなくなかった |
| Polite | いけなかったです |
| Polite negative | いけなくなかったです |
Te-formて形
| Plain | いけなくて |
|---|---|
| Plain negative | いけなくなくて |
Can and if
Conditional (-ba)仮定形・ば
| Plain | いけなければ |
|---|---|
| Plain negative | いけなくなければ |
Conditional (-tara)たら
| Plain | いけなかったら |
|---|---|
| Plain negative | いけなくなかったら |
Adjectives
Adverb (adjectives)連用形
| Adverb | いけなく |
|---|
More common Japanese verbs and adjectives
- 痛々しい (itaitashii)pitiful, pathetic, painful
- 極まりない (kiwamarinai)extremely, in the extreme, knows no bounds
- にくい (nikui)difficult to ..., hard to ...
- 奥深い (okufukai)profound, deep
- 潔い (isagiyoi)gracious, graceful, honourable
- 厚い (atsui)thick, deep, heavy
- かなわない (kanawanai)no match for
- か弱い (kayowai)weak, feeble, delicate
- きつい (kitsui)tough, hard, severe
- ぎこちない (gikochinai)awkward, clumsy, stiff
- くすぐったい (kusuguttai)ticklish
- しつこい (shitsukoi)insistent, obstinate, persistent
About these tables
The forms are built from Wiktionary's conjugation tables, and they are the ones the Japanese verb conjugation worksheet generator prints, so a chart or answer key made there matches this page. That page explains how the forms were checked.
Print this verb chart opens いけない (ikenai) on the worksheet preview with every form filled in, ready to print on A4 or US Letter or save as PDF. To practice it with other verbs and adjectives, the generator also makes blank conjugation boxes and quick quizzes with answer keys. To practice online instead, the Japanese verb conjugation quiz marks each form as you type it.
Verbs, adjectives and their meanings come from JMdict, the property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. The forms are built by the standard rules, with the irregular ones written out.